O ye two blessed souls! Your letter dated July 27, 1919, did not arrive, but the latest one from August 5 was delivered by Riad Selim
BBBD.Meinhard, Alexander. Briefen und Botschaften an die Baha’i, in Deutschland und weitere deutschsprachige länder. Private Printing, 2021. Letters and messages to Bahá’ís in Germany and other German-speaking countries